Measurement of sigma(p(p)over-bar -> Z)center dot Br(Z ->tau tau) at root s=1.96 TeV

dc.contributorJoint Nucl Res Inst
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dc.contributorMichigan State University
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dc.contributorFermilab Natl Accelerator Lab
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dc.date.accessioned2014-05-20T14:08:18Z
dc.date.available2014-05-20T14:08:18Z
dc.date.created2014-05-20T14:08:18Z
dc.date.issued2005-04-01
dc.identifierPhysical Review D. College Pk: American Physical Soc, v. 71, n. 7, 7 p., 2005.
dc.identifier0556-2821
dc.identifierhttp://hdl.handle.net/11449/23956
dc.identifier10.1103/PhysRevD.71.072004
dc.identifierWOS:000228765400010
dc.identifierWOS000228765400010.pdf
dc.description.abstractWe present a measurement of the cross section for Z production times the branching fraction to tau leptons, sigma.Br(Z ->tau(+)tau(-)), in p (p) over bar collisions at root s=1.96 TeV in the channel in which one tau decays into mu nu(mu)nu(tau), and the other into hadrons+nu(tau) or e nu(e)nu(tau). The data sample corresponds to an integrated luminosity of 226 pb(-1) collected with the D0 detector at the Fermilab Tevatron collider. The final sample contains 2008 candidate events with an estimated background of 55%. From this we obtain sigma.Br(Z ->tau(+)tau(-)) = 237 +/- 15(stat)+/- 18(sys)+/- 15(lum)pb, in agreement with the standard model prediction.
dc.languageeng
dc.publisherAmerican Physical Soc
dc.relationPhysical Review D
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleMeasurement of sigma(p(p)over-bar -> Z)center dot Br(Z ->tau tau) at root s=1.96 TeV
dc.typeArtículos de revistas


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